Head Rebuild Question

[marc_scirocco at sympatico.ca (Marc Scirocco Quebec)]

see bellow:

Marc
'83 Scirocco
'88 Scirocco Slegato 

> -----Message d'origine-----
> De : scirocco-l-bounces@scirocco.org
> [mailto:scirocco-l-bounces@scirocco.org]De la part de Mark
> Envoye : 11 juin, 2003 19:58
> A : Marc Scirocco Quibec; 'Jesse Reid'; scirocco-l@scirocco.org
> Objet : RE: Head Rebuild Question
> 
> 
>  --- Marc Scirocco Quibec <marc_scirocco@sympatico.ca> wrote:\
> > I will take it for granted that it is an 8V head that you 
> are talking about.
> > 
> > Head's combustion chamber face can be milled so long as 
> dimension from head
> > gasket surface to cylinder head cover gasket surface is not 
> reduced to less
> > than 5.219 inches.
> 
> 
> That's the factory minimum spec.  You can shave more than 
> that...  I shaved my head
> .040", and after cc'ing a chamber and a cylinder at TDC (2.0 
> ABA), and factoring in head
> gasket area, my compression ratio stood at 10.8:1
> 

I am sure it is feasable. I was just giving what was safe.

>  
> > You will gain around half a point (10.5) of compression 
> ration if you do so
> > from a stock head
> 

Typo here, I meant half a point (0.5), so from whatever to 0.5 more

> 
> This seems a bit optimistic to me...
> 
> 
> > Your valves will also meet with your pistons if you ever
> > loose you timing belt.
> 
> 
> Not at the minimum factory spec you listed. 

Unfortunately, I have 8 bent valves here to prove my point

> 
> 
> Mark.
> 80 S
> 81 S
> 
> 
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